Three natural numbers, their least common multiple is 24, the greatest common factor is 3, the sum of these three natural numbers is the largest______ .

Three natural numbers, their least common multiple is 24, the greatest common factor is 3, the sum of these three natural numbers is the largest______ .

According to the analysis, the three numbers are multiple relations, the smaller number is 3, the larger number is 24, and the middle number is 6 or 12. From this, the three natural numbers are: 3, 6, 24; or 3, 12, 24; so the sum of the three natural numbers is: 3 + 6 + 24 = 33 or 3 + 12 + 24 = 39; so the answer is: 39